Speed-controlling device.



SPEED GONTROLLING DEVI'JE. IIIIIIIIIIIIIIIIIIIIIIIIII 7.

UNrTEn sTArrs PATENT onirica.'

JOSEPH-W. JONES, OF NEW YORK,N. Y.

SPEED-CONTROLLING DEVICE.

' which may be connected to a motor or-other machinery and which may 'be adapted to` operate, upon a certain predetermined speed being reached, to shut off or limit the motive means and thereby stop orreducev the speed of the motor or other machinery with which it is connected. l

' The yinvention consists in the novel,con struction, combination and arrangement of ticularly described.

The device is intended to be used rin vconnection with a speedometer or similar device and more especially to that type shown in my Patent #765,841, granted July, 26, 1904, but it is obvious that it may be applied to any similar device for controlling motive means of any class.

In the accompanying drawings Vmy inven- 'tion is shown in a diagrammatic form, Figure 1 showing the circuits, and Fig. 2 the controlling device. a i

Referring now to this drawing, theospeedometer, which may be of any ordinary or suitable type, may be seen represented at 2, the shaft 3 being adapted to ,be rotated by the motor, while the wheel 4 having a peripheral groove 5 is not only rotated by the shaft but is also shifted along the shaft by certain controlling means in order4 to shift a lever 6 pivoted at the point 7, the Wheel 4 serving lto control the index which indicates the speed at which the motor ist working.' This controlling means may be of any Suit- 45 able type as for instance the means shown in a diagrammatic way in Fig. 2 where 40 represents a weight pivoted upon the shaft 3 s'o as to revolve therewith but yet swing thereon tending normally to assume a slanting direction as shown in Fig.- 2, butadapted to assume a right angled position when rotated' by reason of the 'centrifugal force of rotation; this weight may be connected with the wheel 4 by a link 41 and thus move the wheel 4.

55 longitudinally along the shaft 3 to an extent devices and elements hereinafter more par-Y Speccation of Letters Patent:

' Application filed October .24, 1907. Serial No.v 398,864.

Patented April 27, 1909.

proportioned tothe rapidity' of the revolution thereof.

Within the speedometer and in the path of Ythe lever 6 is a series of contact points 8, 9

and 10 with which the lever successively comes'v in contactLas it is turned upon its pivot, and from each of these contacts wires 11', 12 and 13 pass to theI contact points 14, 15 and 16 of a switch 17, having the arm 18, adapted to be swung around to engage successivelysaid contact points 14, 15 and 16. The arm 18 is connected by means of the line 19 witli'one of the poles of the electro-'magnet 20, while the other ole ofthis magnet is connected with the liever -6 at its pivot by means ofthe line 20a, having the lbattery 21 in its circuit and the electro-magnet has the usual armature 22 having a contact point 23 which engages a screw 24 and is adapted to close normally a circuit 25 having therein a spark plug 26 so that normally the spark plug is in operation in the gas'engine and the same is always ready for work. v When,`1how ever, this circuit is broken by the energi zation of the electro-magnet 20 the spark lug is rendered inoperative a'nd thereby likewise the motoror engine'.

Between the two coils of the magnet 2() is a contact point 2.7 forming part of a circuit 28 which is closed when the'armature 221s 8o attracted by tle magnet. This circuit in cludesI a' battery, and also a solenoid 29, adapted to lowerl a plunger and a valve stein and thereby close a valvel 31 thus shutting off the supply of motive power to the motor o1' engine. The electro-magnet 2() 1s only energized, how/ever, when the lever 18 is connected with one of the contacts 14, 15 or 16,

which for instanceV may respectivelyrepre sent a speed'of ten, twenty or thirty y*miles 95 per hour, representing the rat'e at whlch 1t is desired to have the engine drive an automobile or boat or the motive means for any ma-/ chinery. The speedometer, as is well known, indicates the speed at which any of these machines travel, and as the pointer travels over the dial representing the miles per hour, thelever 6 is carriedwith it, and in succession passes 'over the contact Ipoints 8, 9 and 10 and to that extent closes the circuit through the lines 11, 12 or 13. It will be obvious that if the lever 18 is set upon any certain one of its own contact points, it cornpletes the circuit as far as the switch 1 7 is concerned. Vhen therefore the speed- 110 by Letters Patent is as follows:

ometer causes the lever 6 to make vcontac with its contact 'point corresponding to the contact point withwhich the lever 18 is at that time in contact, it Will be seen, that a complete circuit is established through the magnet 2() whereupon its armature 22 is attracted and the contact point 23 drawn-away from the screw 24 thus breaking the circuit 25v and rendering the sparker inoperative, and at the same time drawing the armature 22 into contact with the point 27 and closing power to the engine is cut off.

l I do not limit myself to the exact form of the circuit 28 whereby the supply of motive vlthe invention herein shown and described, it

being obvious that various modifications may be made in the mechanical construction of the invention, which is here shown and described in a diagrammatic Way. What I claim as new vand desire lto secure l: In a speed controlling device, the coinbination with a motor or engine and an elec- A tric circuit controlling the operation of the same; of a switch in said'circuit adapted to close said circuit through. any one of a plurality of shunts arranged 1n parallel; an arm or lever in said circuit at the other'endrof said shunts adapted to be moved into various positions corresponding to varying rates of speed of said motor or engine and thereby to contact with one oranother of said shunts. and close said circuit therethrough; and means for operatively connecting said motor or engine with said arm or lever.

2. In -a speed controlling device, the combination with a motor or engine comprisingv a spark. plug and a spark 'plug circuit; of a and close said circuit therethrough and means for operatively connecting said motor or engine-wlth said arm or lever. ln'fa speed controlling device, the combination with a motor or engine, comprising a valve for controlling the motive power or force thereof; of a main electric circuit adapted to open. and' close said valve; a switch in'said main circuit adapted to close vthe same through any one of a plurality of shunts arranged in parallel; an arm or lever in said main circuit at the other end of said shunts adapted to be movedv into various positions corresponding to varying rates ofl speed of said motor or engine and thereby to contact With one 01 another of said shunts and closeV said circuit therethrough,- and means for operatively connecting said motor or engine with said arm orlever.

In witness whereof I have hereunto signed my name this ytwenty-third day of October '1901, in the presence of two subscribing witnesses'. L A l v JOSEPH W'. JONES.

y Witnesses: y f

THOMAS S. BARRETT EDMUND J. SooFIELD. 

